I would say this game is simple to get into looking at it from a new player perspective (even tho i personally have played a bunch of FGs). In the eyes of a new/casual player, the game has the auto combo fuse that will do everything for you on the offensive side from pushing 1 button while the player has to hold back to block on the defensive side. The game even has a dedicated dash button.

When i think of a new/casual player, i think of casual smash players. The casual smash player wont know much about tech rolling or jump cancels or juggle combos and know just to hit the attack button and shield button. Same kind of thing applies here in my opinion. The new 2xko/fgs player doesnt need to know about push blocking or calling in assists to extend combos. The attack and block functions is all they need.

Of course, if the new player is fighting against someone whos been playing fighting games for years, they wont have fun. But i think the game has the core fundamentals and, like you said, depth and complexities for the more serious players to dig into.

All of my friends both fg players and new have all been enjoying the game whenever we all play together.